Rational design and in situ growth of SnO2/CMF composites: insightful understanding of the formaldehyde gas sensing mechanism and enhanced gas sensing properties

2020 ◽  
Vol 8 (36) ◽  
pp. 12418-12426 ◽  
Author(s):  
Yuxi Li ◽  
Na Luo ◽  
Wenshuang Zhang ◽  
Qingmin Hu ◽  
Xiaohong Wang ◽  
...  

In this paper, 3D porous hierarchical structured SnO2/CMF showed excellent selectivity and sensitivity to HCHO. In addition, the sensing mechanism and performance of SnO2/CMF were studied in depth.

2020 ◽  
Vol 271 ◽  
pp. 127716
Author(s):  
Xiaoguang San ◽  
Yiming Lu ◽  
Guosheng Wang ◽  
Dan Meng ◽  
Xiaohui Gong ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74944-74956 ◽  
Author(s):  
Yang Li ◽  
Huitao Ban ◽  
Mingfei Jiao ◽  
Mujie Yang

In situ preparation of SnO2 nanosheet/polyaniline composite on a substrate and its applications as a high performance gas sensor.


2016 ◽  
Vol 18 (28) ◽  
pp. 18846-18854 ◽  
Author(s):  
Neha Bhardwaj ◽  
Akhilesh Pandey ◽  
Biswarup Satpati ◽  
Monika Tomar ◽  
Vinay Gupta ◽  
...  

Cu doped SnO2 nanosheets and nanodiscs exhibit highly enhanced CO gas sensing properties and excellent selectivity for CO gas.


2011 ◽  
Vol 492 ◽  
pp. 308-311 ◽  
Author(s):  
Wu Bin Gao ◽  
Cheng Dong ◽  
Xu Liu ◽  
Yun Han Ling ◽  
Jia Lin Sun

Gas sensor based on point contact tungsten trioxide (WO3) was prepared by in-situ induction-heating thermal oxidation of tungsten filaments. X-ray diffractometry (XRD) and field emission scanning electron microscopy (FESEM) were employed to analyze the phase and the morphology of the fabricated thin films. The results showed that the WO3films exhibited a monoclinic phase and were composed of hierarchical micro and nano crystals. The NO2(1-8 ppm) sensing properties of the point contact sensors based on Pure and Au-sputtering doped (2.5 at%) WO3films were investigated. The results showed that the gas sensing properties of the Au (2.5 at%) doped WO3sensors were superior to those of the undoped. The obtained point contact WO3sensor exhibited the maximum NO2gas response at 100°C.


2020 ◽  
Vol 31 (21) ◽  
pp. 18412-18426 ◽  
Author(s):  
Wen-dong Zhou ◽  
Davoud Dastan ◽  
Xi-tao Yin ◽  
Shuai Nie ◽  
Saisai Wu ◽  
...  

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